Ford Mustang (1999-2004) Service Manual: Transmission Description (Description and Operation)
The 4R70W has the following features:
- Wide ratio gears
- Four speeds
- Rear wheel drive
- Automatic
- Electronic shift
- Torque converter clutch control
- Line pressure controls
The transmission uses Ravigneaux-style double-pinion gearset with two bands, one one-way roller clutch, one mechanical diode and four friction clutches to produce four forward gears and Reverse.
4R70W Automatic Transmission

Automatic Transaxle/Transmission
General Specifications
a - MERCON V is not interchangeable at this time with the current MERCON
fluids. Check the
transmission fluid level indicator to determine the correct fluid and refer to
the ...
Identification Tags
All vehicles are equipped with a Vehicle Certification Label, located
on the driver side door lock post.
For correct transmission identification, refer to the code in the space
marked TR.
...
Other materials:
Driveline Angle
Item
Description
1
Bottom of the frame
2
Engine crankshaft centerline
3
Engine angle
4
Driveshaft and coupling shaft centerline
5
Driveshaft and coupling shaft angle
6
Rear axle pinion centerline ...
Pressure Plate Check
1. Check the clutch pressure plate surface for scoring, cracks or
discoloration. Minor scratches or
discoloration should be removed with a fine emery cloth.
2. Measure the flatness of the clutch pressure plate surface with a
straightedge and a feeler
g ...
Safety Precautions
WARNING: Never run the engine with one wheel off the ground, for
example, when
changing a tire. The wheel(s) resting on the ground could cause the vehicle to
move.
WARNING: The tire and wheel must always be correctly matched. It is very
important to
determ ...
